The Weird Reason You're Annoyed With Your Guy

No question, bad boys are freaking hot. But most of us end up with a more stable guy when we're ready to settle down. And, according to a new study, we kinda regret it once a month.

In the study, researchers at UCLA monitored women in LTRs to check out the little changes that occurred in their behavior when they ovulated. They had the women answer questions about the quality of their relationships when they were the most fertile and least fertile.

What they discovered: Women who were dating stable guys felt the most distant from them when they were ovulating, but felt close to them when they weren't. Women who were with sexy bad boy types, on the other hand, felt closest to their guys right before they ovulated.

Even crazier, women with stable dudes were more attracted to other guys when they were ovulating and got annoyed with their BFs more during this time. (Anyone else feeling kinda bad for the guys in this situation?)

But even though women were more likely to get ticked off with their stable S.O.s when they ovulated, they never wanted to end their relationships—they just got pissed off...and then got over it.

So, if you notice yourself suddenly feeling annoyed with your guy for no reason, check the time of the month. Your ovaries might be stirring up trouble.